It reminds me of a time when I was younger. We used to always go to a hotel for the weekend for my mom & aunts to party and us kids would play in the pool. Well my cousin Dean was probably about 6 at the time and he took a tube of toothpaste and smeared it all over the bathroom mirror. When my aunt asked him why he did that he just looked at her and said "The directions don't say not to!"
Edit: I wonder what happens if you use a plunger near power lines?
Those are hilarious. Can you imagine someone in 200 years doing an archeological dig... they'd think people in the 21st century were really, really dumb!
My favorite:
Hotel provided shower cap in a box:
Fits one head.